Thanks Zotty! FYI MOBO is ROG Strix X299-E Gaming II and it looks like H115i will fit on top.
Regarding your response to 1 above; Does that mean I can connect the H115i fans to the LED hub instead of to the pump? Each fan has two connections (one labeled RGB hub and one unlabeled - thicker 4 pin) and the pump has connections for both. Which one would I connect to the Commander/fan hub that came with the D500? Wouldn't I lose the ability to have the pump regulate fan speed this way?
Re: 2, assuming it is a cramped environment that might get hot, would you think top intake or exhaust?
Re: 3 Good idea! Hate the thought of those ML LED's messing with a well synched light show from the LL's though. :(
Re: 4, I will and it is!
New Q: Re: the H115i pump cabling, does anyone have a clue where on an ASUS Mobo the 1 pin connector that splits off the SATA connection would go? Manual says it goes to the CPU fan header, but there is no such animal on my Mobo.
Finally; obviously, my mobo doesn't have enough USB on board connections (only has 2 but each seems to be 2in1). I just ordered both of these and if anyone has any experience with one or the other, let me know!
https://www.amazon.com/gp/product/B01IFGFTJ2/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B076Q8685Y/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Best and thanks again!